多个单独图片进行上传，并预览

想要达到的效果图：（有多个单独的图片进行添加并预览，统一上传）

css:

.message {
 ???background-color: #fff;
 ???margin-top: 0.26rem;
 ???padding: 0.3rem;
}
.message p {
 ???color: #e96969;
 ???font-size: 0.48rem;
 ???margin: 0.4rem 0;
 ???padding-left: 0.78rem;
 ???position: relative;
}
.message p span {
 ???font-size: 0.36rem;
}
.message p em {
 ???display: inline-block;
 ???width: 0.12rem;
 ???height: 0.48rem;
 ???border-radius: 0.1rem;
 ???background-color: #e96969;
 ???position: absolute;
 ???left: 0.28rem;
 ???top: 0.12rem;
}
.message ul li {
 ???margin: 0 auto;
 ???width: 8.7rem;
 ???padding: 0.38rem 0;
 ???background-color: #eee;
 ???position: relative;
 ???text-align: center;
 ???border-radius: 0.2rem;
 ???margin-bottom: 0.44rem;
}
.message ul li img {
 ???margin: 0.13rem 0 0.525rem 0 ;
 ???width: 5.4rem;
 ???height: 2.8rem;
}
.message ul li div {
 ???font-size: 0.36rem;
 ???color: #666;
}
.message ul li div span {
 ???color: #e53a3a;
}
.message ul li input {
 ???width: 100%;
 ???height: 100%;
 ???position: absolute;
 ???left: 0;
 ???top: 0;
 ???background-color: red;
 ???opacity: 0;
}
.message .footer {
 ???padding: 0.3rem;
 ???width: 100%;
 ???border-top: 0.02rem solid #ccc;
 ???position: fixed;
 ???bottom: 0;
 ???left: 0;
 ???background-color: #fff;
}
.message .footer button {
 ???color: #fff;
 ???font-size: 0.48rem;
 ???height: 1.32rem;
 ???width: 100%;
 ???background: url(../images/footer.png) no-repeat;
 ???background-size: cover;
 ???background-position: center center;
 ???line-height: 1.32rem;
 ???text-align: center;
 ???border: 0;
 ???outline: 0;
 ???border-radius: 0.1rem;
}

html:

<div class="message">
 ???<p><em></em>证件上传<span>（请上传个人真实证件）</span></p>
 ???<ul>
 ???????<li>
 ???????????<input type="file" id="imageUrl01" onchange="showImg(‘imageUrl01‘,‘photoImg01‘)"/>
 ???????????<img src="images/camera.png" ?id="photoImg01"/>
 ???????????<div>点击上传身份证<span>人像面</span>照片</div>
 ???????</li>
 ???????<li>
 ???????????<input type="file" id="imageUrl02" onchange="showImg(‘imageUrl02‘,‘photoImg02‘)"/>
 ???????????<img src="images/camera.png" ?id="photoImg02"/>
 ???????????<div>点击上传身份证<span>国徽面</span>照片</div>
 ???????</li>
 ???????<li>
 ???????????<input type="file" id="imageUrl03" onchange="showImg(‘imageUrl03‘,‘photoImg03‘)"/>
 ???????????<img src="images/camera.png" ?id="photoImg03"/>
 ???????????<div>点击上传身份证<span>手持身份证</span>照片</div>
 ???????</li>
 ???</ul>
 ???<div class="footer">
 ???????<button type="button">提交</button>
 ???</div>
</div>

js:

<script>
 ???function showImg(fileid,target){//给2个参数，其他位置的参数名一致，值就进去了
 ???????var preview = document.querySelector(‘#‘+target);//获取img元素,显示图片位置，根据el表达式(‘#‘+target)
 ???????var file = document.querySelector(‘#‘+fileid).files[0];//根据id拿到文件选择框里面的文件，
 ???????var reader = new FileReader();//创建FileReader接口（把文件放到图片预览框里面）
 ???????reader.onloadend = function () {
 ???????????preview.src = reader.result;
 ???????}
 ???????if (file) {
 ???????????reader.readAsDataURL(file);
 ???????} else {
 ???????????preview.src = "";
 ???????}
 ???}
</script>

多个单独图片进行上传，并预览

原文地址：http://www.cnblogs.com/bagnliu/p/7978097.html